.title {
    display: table;
    font-size: 14px;
    color: #999;
}

.inner {
    display: table-cell;
    white-space: nowrap;
    padding: 0 10px;
}

.title::before,.title::after {
    content: '';
    display: table-cell;
    width: 9999px;
    overflow: hidden;
    background: linear-gradient(#ccc 0, #ccc) center no-repeat;/**线性渐变线*/
    background-size: 100% 1px;
}